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reference laboratory Applications

  • Waste management for dangerous wastes

    A wide variety of wastes are too hazardous to be disposed of by traditional means. Hospitals, clinics, laboratories, nursing homes, funeral homes, dental offices and veterinary clinics are just some examples of places that produce potentially dangerous bioactive waste, often referred to as biomedical waste. Proper disposal of biomedical waste is a complex process that must be carefully controlled to avoid serious public health risks. The waste must be placed in special bags, stored separately, transported in refrigerated trucks and carefully disposed of to eliminate potential exposure. In many cases, the waste must be autoclaved before it is land filled. This complex process results in exceedingly high costs for the disposal and treatment of biomedical waste.

    By Terragon Environmental Technologies Inc. based in Montréal, QUEBEC (CANADA).

  • APHA Color #3020

    Measurement of APHA color either on-line or in a laboratory setting using a photometer. Background: APHA is sometimes referred to as the Platinum Cobalt (Pt/Co) or Hazen scale. Also referred to as a “yellowness index”, the APHA color scale is a common method of comparison of the intensity of yellow-tinted samples to assess the quality of liquids that are clear to yellowish in color. Originally developed to determine the purity of municipal water supplies, it is now used as a metric for purity in the water, chemical, oil, plastics, and pharmaceutical industries. APHA color quantifies the appearance of trace amounts of yellowness, which is a visual indicator of product degradation due to exposure to light or heat; the presence of impurities and negative effects of processing. As such APHA color is often used as a product release specification. APHA is a single number yellowness index. The units are based on a dilution of a 500ppm solution of PtCo.

    By Guided Wave Inc, based in Rancho Cordova, CALIFORNIA (USA).

  • Water quality testing for drinking water services in remote areas

    In 1985, the University of Surrey in collaboration with Oxfam developed the Oxfam DelAgua Portable Water Quality Monitoring Test Kit. The Oxfam DelAgua kit enables field workers to test water quality in remote and isolated situations and in circumstances where there is no access to a water testing laboratory. Since its development in 1985, the water test kit has been used by all the major International NGO-s and other aid agencies in over 130 countries around the world.

    In 2006, The University of Surrey and other investors founded DelAgua Water Testing Limited to take over the management of the DelAgua organisation. Since then, various improvements have been made, including:

    • The upgrading of all kits
    • The upgrade of the design, manufacturing and distribution functions
    • R&D to produce a portable microbiological testing kit that provides quantitative results in less than 20 minutes.
    • The upgrade of existing services and the introduction of new services, including:
      • Free access to a water quality risk assessment software program on DWT`s website
      • Free access to a library of reference documents on DWT`s website

    In addition to distributing its own kits and consumables, DWT also offers a distribution service for other manufacturers` products. The most popular products are detailed on this website, but those not detailed can also be supplied - DWT is able to source in excess of 60,000 products from numerous manufacturers.

    DWT is committed to providing services and products to enable the provision of clean drinking water for everyone around the world.

    By DelAgua Group based in Marlborough, UNITED KINGDOM.

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